package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import bean.User;
import bean.UserDAO;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class Login extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public Login() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request,response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String username=new String(request.getParameter("username").getBytes("ISO-8859-1"),"UTF-8");
		String password=new String(request.getParameter("password").getBytes("ISO-8859-1"),"UTF-8");//获取到name和password
		User user=new User(); 
		user.setUsername(username);
		user.setPassword(password);
		User user2=UserDAO.retrieve(user);
		if(user2!=null){
			HttpSession session=request.getSession();
			session.setAttribute("username", user2.getUsername());
			session.setAttribute("tag", user2.getTag());             
			if(user2.getTag()==1)
				response.sendRedirect("xuancan.jsp");
			else
				response.sendRedirect("guanli.jsp");
		}
		else
			response.sendRedirect("index.jsp");
	}
	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
